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LT3469ETS8#TRPBF
Product Overview
Category: Integrated Circuit (IC)
Use: Power Management IC
Characteristics: - High efficiency step-up DC/DC converter - Low quiescent current - Wide input voltage range - Adjustable output voltage - Internal soft-start - Thermal shutdown protection - Small package size
Package: 8-Pin ThinSOT-23
Essence: The LT3469ETS8#TRPBF is a power management IC designed for step-up DC/DC conversion. It offers high efficiency and low quiescent current, making it suitable for various applications.
Packaging/Quantity: The LT3469ETS8#TRPBF is available in a ThinSOT-23 package. The quantity per reel is typically 3000 units.
Specifications
- Input Voltage Range: 1.6V to 16V
- Output Voltage Range: Adjustable from 2.5V to 20V
- Switching Frequency: Up to 2MHz
- Quiescent Current: 40µA (typical)
- Efficiency: Up to 92%
- Operating Temperature Range: -40°C to 125°C
Detailed Pin Configuration
The LT3469ETS8#TRPBF has the following pin configuration:
- VIN: Input voltage pin
- SW: Switching node connection
- GND: Ground reference
- FB: Feedback pin for output voltage regulation
- EN: Enable pin for turning the device on/off
- VOUT: Output voltage pin
- LX: Inductor connection
- NC: No connection
Functional Features
- High efficiency step-up DC/DC conversion
- Adjustable output voltage for flexibility
- Internal soft-start for controlled startup
- Thermal shutdown protection for device safety
- Wide input voltage range for versatile applications
Advantages and Disadvantages
Advantages: - High efficiency operation - Low quiescent current - Small package size - Adjustable output voltage - Thermal shutdown protection
Disadvantages: - Limited maximum output voltage (up to 20V) - Requires external components for operation
Working Principles
The LT3469ETS8#TRPBF is a step-up DC/DC converter that utilizes an internal switch to boost the input voltage to a higher output voltage. It operates by switching the input voltage across an inductor, storing energy during the on-time and releasing it to the output during the off-time. The feedback pin regulates the output voltage, while the enable pin controls the device's on/off state. The IC also incorporates thermal shutdown protection to prevent overheating.
Detailed Application Field Plans
The LT3469ETS8#TRPBF can be used in various applications, including but not limited to: 1. Battery-powered devices requiring higher voltage levels 2. Portable electronic devices 3. LED backlighting systems 4. Automotive electronics 5. Industrial control systems
Detailed and Complete Alternative Models
Some alternative models to the LT3469ETS8#TRPBF include: 1. LT3469ETS8: Similar specifications and features, but without the thermal shutdown protection. 2. LT3469HMS8#PBF: Higher operating temperature range (-40°C to 150°C) with similar characteristics. 3. LT3469ETS8#PBF: RoHS-compliant version of the LT3469ETS8#TRPBF.
These alternative models provide options based on specific requirements or preferences.
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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem LT3469ETS8#TRPBF w rozwiązaniach technicznych
Sure! Here are 10 common questions and answers related to the application of LT3469ETS8#TRPBF in technical solutions:
Q: What is LT3469ETS8#TRPBF? A: LT3469ETS8#TRPBF is a specific model number for a power management IC (integrated circuit) manufactured by Linear Technology (now part of Analog Devices). It is designed for various applications, including LED backlighting, flashlights, and other low-power devices.
Q: What are the key features of LT3469ETS8#TRPBF? A: Some key features of LT3469ETS8#TRPBF include a wide input voltage range, high efficiency, adjustable output voltage, and overvoltage protection.
Q: How does LT3469ETS8#TRPBF help in LED backlighting applications? A: LT3469ETS8#TRPBF provides efficient power conversion and control for LED backlighting, ensuring optimal brightness and longer battery life in portable devices like smartphones, tablets, and laptops.
Q: Can LT3469ETS8#TRPBF be used in automotive applications? A: Yes, LT3469ETS8#TRPBF is suitable for automotive applications as it can handle the required voltage ranges and has built-in protection features against voltage spikes and transients.
Q: Is LT3469ETS8#TRPBF capable of driving multiple LEDs in series? A: Yes, LT3469ETS8#TRPBF can drive multiple LEDs in series by adjusting the output voltage accordingly. It provides constant current regulation to ensure uniform brightness across the LEDs.
Q: Does LT3469ETS8#TRPBF have thermal protection? A: Yes, LT3469ETS8#TRPBF has built-in thermal protection that prevents the IC from overheating. It automatically reduces the current or shuts down if the temperature exceeds a certain threshold.
Q: Can LT3469ETS8#TRPBF operate with a wide input voltage range? A: Yes, LT3469ETS8#TRPBF can operate with an input voltage range of typically 2.5V to 16V, making it suitable for various power supply configurations.
Q: What is the efficiency of LT3469ETS8#TRPBF? A: LT3469ETS8#TRPBF has high efficiency, typically above 90%, which helps in minimizing power losses and maximizing battery life.
Q: Does LT3469ETS8#TRPBF support dimming control for LED applications? A: Yes, LT3469ETS8#TRPBF supports PWM (Pulse Width Modulation) dimming control, allowing precise brightness adjustment for LED applications.
Q: Are there any evaluation boards or reference designs available for LT3469ETS8#TRPBF? A: Yes, Analog Devices provides evaluation boards and reference designs for LT3469ETS8#TRPBF, which can help engineers quickly prototype and integrate the IC into their technical solutions.
Please note that the answers provided here are general and may vary depending on specific application requirements. It's always recommended to refer to the datasheet and consult with the manufacturer for detailed information.